Expired European patentEurope
Method and circuit for detecting the information contained in a received signal
EP 0203943 B1 · Applicant: Gesellschaft zur Förderung der industrieorientierten Forschung an den Schweizerischen Hochschulen und weiteren Institutionen
Overview
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Listed from its EPO record in Patent Yard's archive of European patents past their term. Its claims, description and drawings are in the EPO PDF and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed December 4, 1985 and granted May 24, 1989. A European patent lasts at most 20 years from filing, so its term ended December 4, 2005.
- A supplementary protection certificate, which can extend a medicine or crop-protection patent, adds at most five and a half years, so even that would have ended by June 4, 2011.
- We check European rights only. A US or other national patent in its family could still be in force: check its family on Espacenet or Google Patents.
FiledDecember 4, 1985
PublishedDecember 10, 1986
GrantedMay 24, 1989
Term endedDecember 4, 2005
Application numberEP 85905756
Classification (CPC)H04L27/1525
Timeline
Timeline From EPO dates
Sources & verification
Official EPO records
Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.